10. Cats

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Tom cats (males) have been known to engage in same-sex interludes. As well as humping one another, they have been seen spooning when they sleep and grooming one another.
However cats are not picky, they will get together with anyone. Even members of their family, such as their mothers, fathers, sisters, brothers, sons and daughters.It’s interesting that homosexuality has been found in many species of animal; but homophobia only exists in one species of animal: humans. We’ve all heard that comment being gay is unnatural. Well sorry homophobes, but Mother Nature disagrees with you.